Skip to main content
No exploitation reportedFix availableAwaiting NVD analysis

CVE-2026-5367

No exploitation reported by the sources we read.

  • Published2026-04-24
  • WeaknessCWE-130

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A flaw was found in OVN (Open Virtual Network). A remote attacker, by sending crafted DHCPv6 (Dynamic Host Configuration Protocol for IPv6) SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the disclosure of sensitive information stored in heap memory, which is then returned to the attacker's virtual machine port.

Timeline

dates in UTC
  1. 2026-04-2413:16CVE publishedNVD

Versions per branch

Products declared by the CNA24 products

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

18 more products in the CVE record.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-08-25

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • openvswitchSUSE:Linux Micro 6.2all versions · fixed in 3.5.4-160000.4.1
  • openvswitchSUSE:Linux Micro 6.1all versions · fixed in 3.1.7-slfo.1.1_4.1
  • openvswitchSUSE:Linux Micro 6.0all versions · fixed in 3.1.7-6.1
  • openvswitchSUSE:Linux Enterprise Server for SAP applications 16.0all versions · fixed in 3.5.4-160000.4.1
  • openvswitchSUSE:Linux Enterprise Server for SAP Applications 15 SP6all versions · fixed in 3.1.7-150600.33.15.1
  • openvswitchSUSE:Linux Enterprise Server for SAP Applications 15 SP5all versions · fixed in 2.14.2-150400.24.35.1
  • openvswitchSUSE:Linux Enterprise Server for SAP Applications 15 SP4all versions · fixed in 2.14.2-150400.24.35.1
  • openvswitchSUSE:Linux Enterprise Server 16.0all versions · fixed in 3.5.4-160000.4.1

31 more package ranges on OSV.dev

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Published
2026-04-24
Last Modified
2026-10-26
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-r8vj-9qgr-m84x

Frequently asked questions

What is CVE-2026-5367?

A flaw was found in OVN (Open Virtual Network). A remote attacker, by sending crafted DHCPv6 (Dynamic Host Configuration Protocol for IPv6) SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the disclosure of sensitive information stored in heap memory, which is then returned to the attacker's virtual machine port.

Is CVE-2026-5367 actively exploited?

Active exploitation of CVE-2026-5367 has not been confirmed. Its EPSS score was 0.9% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-5367?

CVE-2026-5367 has a CVSS v3 base score of 8.6 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Running ovn? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record